This is a two year old HHA single pin adjustable fiber optic sight. It has a rheostat to adjust the brightness of the pin. Also will take a 0,2,4,6x lens. Level bubble on bottom. Sight is in good condition with a few minor scratches. Works flawlessly. I have pictures but file is too large to post here. If interested, email at [email protected] and I will send pics. This sight sold for $125.00 new. Will sell for $70.00